螺纹插装先导溢流阀动态分析

摘要

The cartridge style pilot relief valve is widely used in construction machinery field owning to its compact structure. This valve's damping orifice is variable, which improves the stability and impact resistance. What’more, the valve can realize filling oil. This paper tells the principle of the valve, and analyzes its dynamic performance by power bond graph method and AMESim software, which concludes how the parameters impact on its dynamic per-formance, such as the main valve spool damping coefficient, damping orifice diameter, the pilot spring stiffness and so on.%螺纹插装先导溢流阀结构紧凑，已经被广泛用于工程机械领域。该阀阻尼孔可变，稳定性和抗冲击性较好，而且具有补油功能。叙述了该阀的工作原理，并运用功率键合图法和AMESim软件，分析得出了主阀芯阻尼系数、阻尼孔孔径、先导弹簧刚度等参数对该阀性能的影响。